States: Texas: Montgomery
The John Thomas Taylor born in 1850 who died in 1887 was the son of William S. Taylor and Elizabeth Garrett. He married Rebecca Jane Field. For a complete listing of family members, if you can access the Montgomery Co Library it has The Taylor Family History which lists all these family members.
William S. did have a brother named John Thomas but I do not believe either of his children lived to adulthood. This John Thomas was born in 1825 in Ohio and died there in 1893. A son JT born in 1856 and found only on the 1860 census and a daughter, Hettie Bull Taylor born in 1871 and found only on the 1880 census.